Separate Maps for Bathories and Anolians
Separate the spawns of alde_dun04, specifically Bathories and Anolians, into separate maps. A good way to do this would be to make a second instance of the same map with all the same spawns (Whispers, Mystelltainn, etc) except one has Bathories and the other has Anolians, not both. Make them both require a Key of Underground to enter, as normal. Call the first one alde_dun04 and the second alde_dun05, and you can talk to the same NPC to enter them.
There are very few options for solo leveling for some classes, such as some merchant classes or certain builds of thieves. Bathories have for years on both officials and low rate private servers been ideal for these classes to level in. Additionally, other classes such as Knights, certain thief builds, wizards, and the priests that accompany them love to level in Anolians. These strong classes and builds have no problem with the bathories in the map, but for the weaker builds the Anolians make this map nearly impossible to navigate.
As the map is now, there is no one set of gear that works for it. If you are one of these weaker classes in which bathories are the ideal monster to hunt, you are essentially forced to abandon this path in lieu of something easier, such as toy factory to 99 (very slow) or finding parties which can be difficult if not impossible with certain niche builds.
I believe that having more choices for how to raise our characters can only improve the health of the server.